LG 17LS5R Service Manual page 15

No Raster on AV Signal
(Component, CVBS, S-VHS)
Repeat
[A] Process .
Pass
Check the signal of
R104, R106, R108, R131
L822, L800, L801.
Pass
Check the
input/ output of IC100.
Pass
Check inputting source cable
and jack.
No Raster on TV(RF) signal
Check the output
of TU500.
Fail
Change R104, R106, R108,
R131, L822, L800, L801.
Fail
Re-solder or change the defect part.
Check X101.
Fail
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Check 5V of TU500.
Re-solder or change the
Fail
defect part.